Enum j4rs::InvocationArg

pub enum InvocationArg {
    Java {
        instance: Instance,
        class_name: String,
        serialized: bool,
    },
    Rust {
        json: String,
        class_name: String,
        serialized: bool,
    },
    RustBasic {
        instance: Instance,
        class_name: String,
        serialized: bool,
    },
}

Struct that carries an argument that is used for method invocations in Java.

Variants

Java

An arg that is created in the Java world.

Fields of Java

instance: Instanceclass_name: Stringserialized: bool

Rust

A serialized arg that is created in the Rust world.

Fields of Rust

json: Stringclass_name: Stringserialized: bool

RustBasic

An non-serialized arg created in the Rust world, that contains a Java instance.

The instance is a Basic Java type, like Integer, Float, String etc.

Fields of RustBasic

instance: Instanceclass_name: Stringserialized: bool

Implementations

impl InvocationArg

pub fn new<T>(arg: &T, class_name: &str) -> InvocationArg where
    T: Serialize + Any, 

Creates a InvocationArg::Rust. This is default for the Args that are created from the Rust code.

pub fn new_2<T>(
    arg: &T,
    class_name: &str,
    jni_env: *mut JNIEnv
) -> Result<InvocationArg> where
    T: Serialize + Any, 

pub fn into_primitive(self) -> Result<InvocationArg>

Consumes this InvocationArg and transforms it to an InvocationArg that contains a Java primitive, leveraging Java's autoboxing.

This action can be done by calling Jvm::cast of Instances as well (e.g.: jvm.cast(&instance, "int")) but calling into_primitive is faster, as it does not involve JNI calls.

pub fn as_java_ptr_with_global_ref(
    &self,
    jni_env: *mut JNIEnv
) -> Result<jobject>

Creates a jobject from this InvocationArg.

pub fn as_java_ptr_with_local_ref(
    &self,
    jni_env: *mut JNIEnv
) -> Result<jobject>

Creates a jobject from this InvocationArg. The jobject contains a local reference.

pub fn instance(self) -> Result<Instance>

Consumes this invocation arg and returns its Instance

pub fn class_name(&self) -> &str

pub fn create_null(null: Null<'_>) -> Result<InvocationArg>

Creates an InvocationArg that contains null

Trait Implementations

impl From<Instance> for InvocationArg

fn from(instance: Instance) -> InvocationArg

Performs the conversion.

impl Serialize for InvocationArg

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error> where
    __S: Serializer, 

Serialize this value into the given Serde serializer.

impl<'a> TryFrom<&'a [&'a str]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [&'a str]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [String]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [String]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [bool]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [bool]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [char]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [char]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [f32]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [f32]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [f64]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [f64]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [i16]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [i16]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [i32]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [i32]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [i64]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [i64]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a [i8]> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: &'a [i8]) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a String> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a String) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a bool> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a bool) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a char> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a char) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a f32> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a f32) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a f64> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a f64) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a i16> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a i16) -> Result<InvocationArg>

Performs the conversion.

impl<'a, 'b> TryFrom<&'a i32> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a i32) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a i64> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a i64) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a i8> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a i8) -> Result<InvocationArg>

Performs the conversion.

impl<'a> TryFrom<&'a str> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: &'a str) -> Result<InvocationArg>

Performs the conversion.

impl<'a, T: 'static> TryFrom<(&'a [T], &'a str)> for InvocationArg where
    T: Serialize, 

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(vec: (&'a [T], &'a str)) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<()> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: ()) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<InvocationArg> for Instance

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(invocation_arg: InvocationArg) -> Result<Instance>

Performs the conversion.

impl<'a> TryFrom<Null<'a>> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(null: Null<'_>) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<String> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: String) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<bool> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: bool) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<char> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: char) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<f32> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: f32) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<f64> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: f64) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<i16> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: i16) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<i32> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: i32) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<i64> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: i64) -> Result<InvocationArg>

Performs the conversion.

impl TryFrom<i8> for InvocationArg

type Error = J4RsError

The type returned in the event of a conversion error.

fn try_from(arg: i8) -> Result<InvocationArg>

Performs the conversion.